128070252 has 18 divisors (see below), whose sum is σ = 323733228. Its totient is φ = 42690072.

The previous prime is 128070227. The next prime is 128070259. The reversal of 128070252 is 252070821.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (128070259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1778718 + ... + 1778789.

Almost surely, 2^128070252 is an apocalyptic number.

128070252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128070252 is an abundant number, since it is smaller than the sum of its proper divisors (195662976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128070252 is a wasteful number, since it uses less digits than its factorization.

128070252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557517 (or 3557512 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 128070252 is about 11316.8128021983. The cubic root of 128070252 is about 504.0606030678.

The spelling of 128070252 in words is "one hundred twenty-eight million, seventy thousand, two hundred fifty-two".